Battery maintainers come in a wide range of designs and styles. Before deciding on one, you should consider the type of batteries you have, the safety features of the potential unit, and its construction materials. We’re going to be covering ten of the best battery maintainer options available on the market. All the products selected in this guide were chosen based on average user reviews and ratings.
10. Black+Decker BM3B Automatic Battery Charger / Maintainer
Best for: Charging and maintaining multiple types of batteries
One of the best battery maintainer gadgets available is the Black+Decker BM3B model. This product is compatible with both 6 and 12-volt battery systems, and works with AGM, GEL, and WET battery types. With a mounting bracket on the back, it stores easily in your garage. This battery maintainer automatically switches between charge mode and float mode based on the energy level of the connected batteries.
9. MotoPower MP00205A Automatic Battery Charger / Maintainer
Best for: Its energy saving design
Equipped with a single LED charging status display, the MotoPower MP00205A model is built to help save energy. It’s designed for use on 12-volt, lead-acid battery types that are commonly used in automobiles, RVs, and lawn equipment. With a special microprocessor, this battery maintainer is fully automatic, and changes from charge to maintenance mode once the battery is fully charged.
8. Schumacher SEM-1562A-CA Speed Charge Battery Maintainer
Best for: Its rugged plastic casing and durable design
One of the most durable battery maintainers on our list is the Schumacher SEM-1562A-CA model. With a rugged plastic exterior, and a one-year warranty from the manufacturer, this battery maintainer is built to last. It’s compatible with both 6 and 12-volt battery types, and comes with jump cables and ring connectors. It’s available on Amazon, and Prime subscribers are eligible for free shipping.
7. Battery Tender 021-0123 Junior Charger
Best for: Its compact design
The Battery Tender Junior is one of the smallest battery maintainers available. This makes it the best battery maintainer for storing away easily in your tool chest, when you take your batteries out of storage. It’s built for 12-volt battery types, and features an automatic shutoff feature, to prevent accidental overcharging. You can find this model on Amazon.
6. NOCO Genius G1100 Smart Battery Charger
Best for: Its safety features, and ease of use for long periods of time
If you’re concerned about safety and efficiency, the NOCO Genius G1100 may be the best battery maintainer for you. With an easy-to-read LED display on the top, you can easily see your current battery charge level, the type of battery selected, and the device power light. With unique spark-proof technology, and an automatic shut-off feature, this battery maintainer is an excellent choice for long-term use.
5. Extreme Max Battery Buddy Charger / Maintainer
Best for: People who want a budget-friendly product
One of the most affordable battery maintainers on our list is the Extreme Max Battery Buddy. Designed for use with both 6 and 12-volt battery types, this compact battery maintainer has a lot of nice features. One of its best ones is that the casing is completely sealed and waterproof. It also has safety features, like a regulatory internal safety circuit, and is backed by a one-year warranty from the manufacturer.
4. Mictuning Battery Float Charger / Maintainer
Best for: Having a very long output cord
For reaching those difficult spots with ease, the Mictuning battery maintainer is the best battery maintainer to consider. It comes with an eight-foot output cable, and has a variety of other useful features. Built for both 6-volt and 12-volt battery types, the slow trickle energy feature automatically adjusts the energy current, to provide maximum charging effectiveness. The product is available for purchase on Amazon.
3. STANLEY BC209 Battery Charger / Maintainer
Best for: Easy mounting with no tools
The STANLEY BC209 battery maintainer is one of the easiest products to mount on our list, thanks to its magnetic back design. It also has a foldable hanging hook, and dual mounting bars as well, providing even more mounting options. The rubber covered battery clamps are built to last, and the rubberized texture makes them very comfortable to use. You can find this product on Amazon, and Prime subscribers can save with free shipping on their order.
2. Leicestercn Battery Maintainer
Best for: Offering four different charging modes
With four different charging modes, the Leicestercn battery maintainer is designed to safely and effectively charge and maintain your batteries. It’s compatible with most 6 and 12-volt battery types, and has safety features like short circuit protection and overload detection. The water and dust resistant design means that this charger is built to last as well.
1. Schumacher SP3 Automatic Battery Extender / Maintainer
Best for: Its easy-to-read status messages
With a unique scrolling display, the Schumacher SP3 battery maintainer is one of the easiest-to-use models that constantly displays charging status. Its designed for use on most standard 6 and 12-volt battery types, and features automatic voltage detection for even easier operation. The hook attachment is great for handing the unit out of your way in your workshop as well. This item is available for purchase on Amazon.
Having a reliable battery maintainer is key to keeping your batteries in working order while away, or during offseason. The battery maintainers covered in our article are among the best battery maintainer options available, containing numerous safety features, and having durable designs. Once you’ve tried one out, tell us about your experience, or leave us a comment suggesting a battery maintainer we might’ve missed.
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